Home / 20,310.58-28,026.69-11,356.84

Finding the Fourth Proportional to 20,310.58, 28,026.69 and 11,356.84

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Solution

The fourth proportional to 20,310.58, 28,026.69 and 11,356.84 is: 15,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310.58 : 28,026.69 = 11,356.84 : x
  2. Step 2: Convert to fraction form
    20,310.58/28,026.69 = 11,356.84/x
  3. Step 3: Cross multiply
    20,310.58x = 28,026.69 × 11,356.84
  4. Step 4: Simplify right side
    20,310.58x = 318,294,634.06
  5. Step 5: Solve for x
    x = 318,294,634.06/20,310.58
  6. Step 6: Final answer
    x = 15,671.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.